package com.atguigu.eduservice.controller;


import com.atguigu.commonutils.R;
import com.atguigu.eduservice.entity.vo.TeacherQuery;
import com.atguigu.eduservice.service.TeacherService;
import com.atguigu.eduservice.entity.Teacher;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author testjava
 * @since 2021-01-28
 */
@Api(description = "讲师管理")
@RestController
@RequestMapping("/eduservice/teacher")
@CrossOrigin
public class TeacherController {

    @Autowired
    private TeacherService teacherService;

    //1.查询讲师表所有数据
    @ApiOperation(value = "所有讲师列表")
    @GetMapping("findAll")
    public R findAllTeacher(){
        List<Teacher> list = teacherService.list(null);
        return R.ok().data("items",list);
    }


    //1.逻辑删除讲师的方法
    @ApiOperation(value = "根据ID删除讲师")
    @DeleteMapping("{id}")
    public R removeTeacher(@ApiParam(name = "id", value = "讲师ID", required = true) @PathVariable String id){
        boolean falg = teacherService.removeById(id);
        if (falg){
            return R.ok();
        }else {
            return R.error();
        }
    }

    @GetMapping("pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable long current,
                             @PathVariable long limit){

        //创建page对象
        Page<Teacher> pageTeacher = new Page<>(current,limit);
        //调用方法实现分页
        //调用方法时候，底层封装，把分页所有数九封装到pageTeacher对象里面
        teacherService.page(pageTeacher,null);

        long total = pageTeacher.getTotal();
        List<Teacher> records = pageTeacher.getRecords();//数据list集合

        return R.ok().data("total",total).data("rows",records);
    }


    //条件查询使用分页的方法
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current,
                                  @PathVariable long limit,
                                  @RequestBody(required = false) TeacherQuery teacherQuery){ //表示参数值可以为空
        Page<Teacher> pageTeacher = new Page<>(current, limit);
        //构建条件
        QueryWrapper<Teacher> wrapper = new QueryWrapper<>();
        String name = teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();
        if(!StringUtils.isEmpty(name)){
            wrapper.like("name",name);
        }

        if (level != null){
            wrapper.eq("level",level);
        }
        if (!StringUtils.isEmpty(begin)){
            wrapper.ge("gme_create",begin);
        }
        if (!StringUtils.isEmpty(end)){
            wrapper.le("gmt_create",end);
        }

        //排序

        wrapper.orderByDesc("gmt_create");
        //调用方法实现条件查询分页
        teacherService.page(pageTeacher,wrapper);

        long total = pageTeacher.getTotal();
        List<Teacher> records = pageTeacher.getRecords();//数据list集合
        return R.ok().data("total",total).data("rows",records);
    }

    //添加讲师接口的方法
    @PostMapping("addTeacher")
    public R addTeacher(@RequestBody Teacher teacher){
        boolean save =teacherService.save(teacher);
        if (save){
            return R.ok();
        }else {
            return R.error();
        }
    }
    //根据讲师id进行查询
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable String id){
        Teacher teacher = teacherService.getById(id);
        return R.ok().data("teacher",teacher);
    }

    //讲师修改功能
    @PostMapping("updateTeacher")
    private R updateTeacher(@RequestBody Teacher teacher){
        boolean flag = teacherService.updateById(teacher);
        if (flag){
            return R.ok();
        }else {
            return R.error();
        }
    }
}

